2026 Updated Salesforce New JavaScript-Developer-I Exam Price

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Salesforce Certified JavaScript Developer (JS-Dev-101) Sample Questions (Q70-Q75):

NEW QUESTION # 70
Refer to the code below:
01 new Promise((resolve, reject) = > {
02 const fraction = Math.random();
03 if (fraction > 0.5) reject( ' fraction > 0.5, ' + fraction);
04 resolve(fraction);
05 })
06 .then(() = > console.log( ' resolved ' ))
07 .catch((error) = > console.error(error))
08 .finally(() = > console.log( ' when am I called? ' ));
When does Promise.finally on line 08 get called?

Answer: A

Explanation:
Behavior of Promise.prototype.finally:
* .finally(handler) registers a callback that runs when the promise is settled , meaning:
* Either fulfilled (resolved) , or
* rejected .
Important points:
* The finally callback does not receive the promise's value or error (unlike then and catch).
* It is executed after the promise is settled, but before the resolution value or rejection reason is passed further down the chain.
* It runs in both success and failure paths.
In the given code:
* The promise may either:
* Call reject( ' fraction > 0.5, ' + fraction) if fraction > 0.5, or
* Call resolve(fraction) otherwise.
In both cases:
* If it resolves , .then(() = > console.log( ' resolved ' )) runs, and then .finally(...) is executed.
* If it rejects , .catch((error) = > console.error(error)) runs, and then .finally(...) is executed.
So .finally runs:
* Not just "when rejected".
* Not just "when resolved".
* But whenever the promise is resolved or rejected .
Therefore, the correct choice is:
* D. When resolved or rejected .


NEW QUESTION # 71
A developer is working on an ecommerce website where the delivery date is dynamically calculated based on the current day. The code line below is responsible for this calculation.
Const deliveryDate = new Date ();
Due to changes in the business requirements, the delivery date must now be today's date + 9 days.
Which code meets this new requirement?

Answer: D


NEW QUESTION # 72
A class was written to represent items for purchase in an online store, and a second class Representing items that are on sale at a discounted price. THe constructor sets the name to the first value passed in. The pseudocode is below:
Class Item {
constructor(name, price) {
... // Constructor Implementation
}
}
Class SaleItem extends Item {
constructor (name, price, discount) {
...//Constructor Implementation
}
}
There is a new requirement for a developer to implement a description method that will return a brief description for Item and SaleItem.
Let regItem =new Item('Scarf', 55);
Let saleItem = new SaleItem('Shirt' 80, -1);
Item.prototype.description = function () { return 'This is a ' + this.name; console.log(regItem.description()); console.log(saleItem.description()); SaleItem.prototype.description = function () { return 'This is a discounted ' + this.name; } console.log(regItem.description()); console.log(saleItem.description()); What is the output when executing the code above ?

Answer: B


NEW QUESTION # 73
Refer to the code below.

After changing the string index values, the of atr is Javascript''. What is the reason for this value?

Answer: D


NEW QUESTION # 74
A class was written to represent items for purchase in an online store, and a second class representing items that are on sale at a discounted price. The constructor sets the name to the first value passed in. The pseudocode is below:

There is a new requirement for a developer to implement a description method that will retrun a brief description for item and saleitem.

What is the out when executing the code above?

Answer: B


NEW QUESTION # 75
......

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